The Coupling,pipe, cataloged under National Stock Number 4730-00-591-9744, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flowserve Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-591-9744 |
| Primary Part Number | 2324 1/4IN |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.250 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | PLAIN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2324 1/4IN PRIMARY | Flowserve Inc (USA) |
| 1718091RKPCF18 | Naval Sea Systems Command (USA) |
| 386 1-4 PRIMARY | Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA) |
| Reference | Meaning |
|---|---|
| 1718091RKPCF18 | 5/9 Secondary reference U.S. Government activity |
| 8678-29PCF18 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-591-9744 is a Coupling,pipe, manufactured by Flowserve Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-591-9744 has 3 manufacturer part numbers on file: 2324 1/4IN (Flowserve Inc), 1718091RKPCF18 (Naval Sea Systems Command), 386 1-4 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy).
3 possible matches (shared part number, not a government interchangeability claim): 6150-00-855-6125, 3040-01-424-2223, 5305-01-620-6713. Verify interchangeability with system specifications before substitution.
Key specifications for 2324 1/4IN: Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN; Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.250 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.